Erica, Breaker of Dragons

Reach, reckless, bloodlust
Whenever Erica deals damage to a dragon, put
a -1/-1 counter on it.
Assault (Whenever this creature attacks, you may
remove this creature from combat and have it fight
target creature. If you do, that creature can't block
this turn.)
{3}{u}{u}: Gain control of target dragon with a
counter on it.